I have both, and yes! Get both. I hate not having enough capacity.
Ribs? Get a hanger! You can do 1-22 Racks on a 22"WSM!
Dont want to setup a WSM? Throw it on the 26"!
Brisket? Plenty of Room on the WSM.
I cook for a family of 6 and for Church so I regularly use these.
I do use lump...